Application Authorization

Unified permissions for apps, RAG, and agents. Never build authorization again.

A single permissions layer for apps, RAG, and agents

Oso is what engineering teams use when they’re done rolling their own permissions. It lets your application answer questions like “can this user read that document?” and “which objects can this agent manage?”

Define your authorization logic centrally
Plug in your application data
Call the Oso API to enforce authorization across apps, RAG, and agents

Available in the cloud or self-hosted.

How Oso works

Oso decouples authorization from your application, so you can build fine-grained access control independently of your business logic.

Write your policy

RBAC, ReBAC, ABAC, AnyBAC you need. Express any authorization model with Polar, our flexible DSL for permissions logic.

Show me the code

Plug in your data

Sync your authorization data with Oso, or keep it in your database – whatever fits your architecture best.

See how it works

Integrate (for the last time)

The right abstractions for every use case. Idiomatic SDKs in the language of your choice. Inline policy tests. Logging, regression testing, and debugging. Backed by the most comprehensive documentation on earth and the team that created the category.